<template>
<el-container class="homeContainer">
  <el-header>
      <div>
          <img src="../assets/heima.png" alt="" >
          <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button></el-header>
  <el-container>
    <el-aside :width="isCollapse ? '64px' : '200px'">
      <div class="toggle-button" @click="toggleCollapse">|||</div>
         <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409eff"
      unique-opened
      :collapse="isCollapse"
      :collapse-transition="false"
      :router="true"
      :default-active="activePath">
      <!--一级菜单-->
      <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
        <template slot="title">
          <i :class="iconsObj[item.id]"></i>
          <span>{{item.authName}}</span>
        </template>
        <!--二级菜单-->
        <el-menu-item-group>
          <el-menu-item :index="'/'+subItem.path+''"
          v-for="subItem in item.children"
          :key="subItem.id"
          @click="saveNavState('/'+subItem.path)">
          <template slot="title">
          <i class="el-icon-menu"></i>
            <span>{{subItem.authName}}</span>
          </template>
          </el-menu-item>
        </el-menu-item-group>
      </el-submenu>
    </el-menu>
    </el-aside>
    <el-main>
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>

</template>
<script>
export default {
  data () {
    return {
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status != 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
      console.log(res)
    },
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
    }
  }
}
</script>
<style lang="less" scoped>
.el-header{
    background-color: #373d41;
    display:flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div {
        display: flex;
        align-items: center;
        span {
            margin-left: 20px;
        }
    }
}
.el-aside{
    background-color: #333744;
    .toggle-button{
      background-color: #4a5064;
      font-size:10px;
      line-height: 24px;
      color: #fff;
      text-align: center;
      cursor: pointer;
      letter-spacing: .2em;
    }
    .el-menu{
      border-right: none;
    }
}
.el-main{
    background-color: #eaedf1;
}
.homeContainer{
    height: 100%;
}
.iconfont{
  margin-right: 10px;
}

</style>
